Title :
Modelling and measurement of magnetic fields around a railway track
Author :
Moresco, M.A. ; Cronje, W.A. ; Steyn, B.M.
Author_Institution :
Rand Afrikaans Univ., Johannesburg, South Africa
Abstract :
The South African railway company (Spoornet) is experiencing difficulties with some of their train wheel detection systems, due to magnetic fields generated by distorted currents flowing in the tracks. These fields interfere with the proximity sensor´s operation and causes inaccurate counting of train wheels. The magnetic field distribution is determined experimentally to determine if shielding can resolve the problem.
Keywords :
distortion; magnetic field measurement; magnetic shielding; railways; South Africa; Spoornet; distorted current flow; magnetic field distribution; magnetic field measurement; magnetic field modelling; railway track; shielding; train wheel detection systems; Conducting materials; Frequency; Magnetic field measurement; Magnetic fields; Magnetic materials; Magnetic sensors; Magnetic shielding; Rail transportation; Sensor phenomena and characterization; Wheels;
Conference_Titel :
AFRICON, 2004. 7th AFRICON Conference in Africa
Print_ISBN :
0-7803-8605-1
DOI :
10.1109/AFRICON.2004.1406784
